[jira] [Commented] (PHOENIX-2039) ROUND over numeric in GROUP BY always returns null

["ramkrishna.s.vasudevan (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PHOENIX-2039?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15073854#comment-15073854 ] 

ramkrishna.s.vasudevan commented on PHOENIX-2039:
-------------------------------------------------

Added this test case 
{code}
    @Test
    public void testRoundOffFunction() throws SQLException {
      long ts = nextTimestamp();
      Properties props = PropertiesUtil.deepCopy(TEST_PROPERTIES);
      props.setProperty(PhoenixRuntime.CURRENT_SCN_ATTRIB, Long.toString(ts + 10));
      Connection conn = DriverManager.getConnection(getUrl(), props);
      String ddl = "create table round_test(k bigint primary key)";
      conn.createStatement().execute(ddl);
      conn.close();
      
      props.setProperty(PhoenixRuntime.CURRENT_SCN_ATTRIB, Long.toString(ts + 30));
      conn = DriverManager.getConnection(getUrl(), props);
      PreparedStatement stmt = conn.prepareStatement("upsert into round_test values(1380603308885)");
      stmt.execute();
      conn.commit();
      conn.close();
      

      props.setProperty(PhoenixRuntime.CURRENT_SCN_ATTRIB, Long.toString(ts + 40));
      conn = DriverManager.getConnection(getUrl(), props);
      ResultSet rs;
      stmt = conn.prepareStatement("select round(k/1000000,0) from round_test");
      rs = stmt.executeQuery();
      assertTrue(rs.next());
      assertEquals(1380603, rs.getLong(1));
      
      props.setProperty(PhoenixRuntime.CURRENT_SCN_ATTRIB, Long.toString(ts + 40));
      conn = DriverManager.getConnection(getUrl(), props);
      stmt = conn.prepareStatement("select round(k/1000000,0) x from round_test group by x");
      rs = stmt.executeQuery();
      assertTrue(rs.next());
      assertEquals(1380603, rs.getLong(1));
    }
{code}
It seems to work fine without any issues. Am I missing anything here? The round with GROUP BY does not return null here.

> ROUND over numeric in GROUP BY always returns null
> --------------------------------------------------
>
>                 Key: PHOENIX-2039
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-2039
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: James Taylor
>              Labels: newbie
>             Fix For: 4.7.0
>
>
> Here's an easy way to reproduce:
> {code}
> create table round_test(k bigint primary key);
> upsert into round_test values(1380603308885);
> select round(k/1000000,0) from round_test;
> +----------------------------------------+
> |             (K / 1000000)              |
> +----------------------------------------+
> | 1380603                                |
> +----------------------------------------+
> select round(k/1000000,0) x from round_test group by x;
> +----------------------------------------+
> |                   X                    |
> +----------------------------------------+
> | null                                   |
> +----------------------------------------+
> {code}
> Here's a work around:
> {code}
> select round(cast(k as date),'MINUTE',30) x from round_test group by x;
> +-------------------------+
> |            X            |
> +-------------------------+
> | 2013-10-01 05:00:00.000 |
> +-------------------------+
> select cast(round(cast(k as date),'MINUTE',30) as bigint) x 
> from round_test group by x;
> +------------------------------------------+
> |                    X                     |
> +------------------------------------------+
> | 1380603600000                            |
> +------------------------------------------+
> {code}



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